Lock.



%i l' once No. 877,654. PATENTED JAN. 23, 1908. T. M. LANSDBN.

LOCK.

APPLICATION IILED APR. 27, 1907.

2 SHEITS-SHBET 1.

FT-E- :No. 877,654. PATENTED JAN. 23, 1908. T. M. LANSDEN.

. LOOK.

' APPLICATION IILED APR. 27. 1907.

2 SHEBTSSHBET 2.

THE NORRIS PE1ERS c0., wasmnamu, a. c.

THOMAS M. LANSDEN, OF BETHANY, ILLINOIS.

LOOK.

Specification cf Letters Patent.

Patented Jan. 28, 1908.

Application filed April 27. 1907 Serial No. 370.715-

T 0 all wh0m it may concern:

Be it known that I, THOMAS M. LANSDEN, a citizen of the United States, residing at Bethany, in the county of Moultrie, State of Illinois, have invented certain new and useful Improvements in Looks and I do hereby deolare the following to be a full, olear, and exact description of the invention, such as Will enable others skilled in the art to which it appertains to make and use the saine.

The present invention relates to improvemonts in looks, and it aims to provide a devioe of that class in which the keeper is pivoted to the keeper plate, to permit its movement into and out of position to engage the bolts disposed in the look box, when the lid of the trunk or chest, to which the look is applied, is closed upon the body portion thefeof.

A further objeot resides in the provision of a look in which the lever whioh trips the bolts is actuated by a dog pivoted to a spring-pressed shutter whioh normally closes the opening of the look box.

With the above and other ends in view, the invention consists in the construction, combination, and arrangement of parts, all as hereinafter more fully described specifically claimed, and illustrated in the accom a* nying drawings, inwhich like parts are esignated by corresponding referenoe numerals in the several views.

Of the said drawingsFigure 1 is a perspeotive view of a portion of a chest and its lid, With the improved look applied thereto. Fig. 2 is an elevation of the look With the cover plate of the look box removed, the keeper being shown in engagement With the bolts. Fig. 3 is a similar view of the look box showing the looking meohanism in inoperative position. Fig. 4 is a vertical section taken on the line 44 of Fig. 3. Fig. 5 is a rear elevation of the keeper plate. Fig. 6 is a bottom plan view of the keeper plate, showing the keeper in folded position.

Fig. 7 is a bottom plan view of the shutter,.

showing also a portion of the actuating spring thereior. Fig. 8 is a detail view of the key used With the look.

Referring more particularly to the drawings, the numeral 10 designates generally the body portion of a ohest, whose lid 11 carries a keeper-plate 12 boltecl thereto. To the rear face of the keeper-plate is seoured a U-shaped braoket 13, between the arms of whioh is pivoted the reduced upper end 01, gnotohed keeper 14, whioh is movable in conseqnence into horizontal or vertical position, being retained in either position by a spring 15, which is likewise secured at one end to the bracket and bears at its froc end against the adjacent end of the keeper, Whose rear face is provided at such point With a scat 16, in which the spring end fits, whenjthe keeper is in its vertical or operative position.

The body 10 of the chest is provided With a lockbox 17, the front plate 18 of whioh is provided With a keyhole 19, through whioh the key 20 is passed. The top of the lookbox is in like manner provided With an opening 21, through which the keeper passes when the lid is shut, such opening being normally olosed by a shutter 22 pivoted upon 3. pin 23 and normally held in operative position by a spring 24;, which bears at its free upper end thereagainst, the lower end of said spring being seoured to the adjacent side wall of the look-box in any preferred manner.

Thelockbox is further provided With a vertical partition 25, whose height is approximately half that of the lockbox,.said partition having a keyhole 26 formed therethrough in alinement With the keyhole 19 in the front plate 18, the key-pin 27 projecting through said keyholes in the usual mariner.

Disposed upon each side of the partition is a bolt 28, provided at its upper end with a nose 29, adapted for engagement in the notch formed in the keeper. At their lower ends said bolts are seCured t0 a common' pivot 30, and are yieldingly pressed forward through the action of springs 31, whose free ends bear against the side walls of the lookbox, the opposite ends of said springs being secured to said bolts. Eaoh bolt is urther provided with a horizontal slot 32 adapted to receive the adjacent end of the horizontal arm 33 of an angle-lever when the bolts are in engagement With the keeper, as hereinalter described, the opposite arm 34 of said angle-lever being maintained normally in vertical position by a spring 35, fastened at its lower end to the upper portion of the partition plate 25.

The shutter 22, above referred to, is provided With a deep longitudinal groove 36, formed upon its under face, in whioh the reduced upper end of a dog 37 fits, the dog being pivotally connected to the'shiitter at' snob point by a bolt 38. V

The lower arm 33 of the anglelever, which, in its normal position, rests in a seat 39 formed in the upper edge of the partition plate, is rovided at its free end with a notch 40, ormed in the inner corner thereof, into which the inner bolt 28 is pressed under the action of its spring 31, so that said bolt, in its normal position, is disposed slightly to one side of the outer bolt, as shown in Fig, 3..

When the parts are in the position shown in the figure above referred to and the lid of the chest is closed upon the body portion thereof, the keeper 14, which has been moved into 0 erative position, Will, in passing throug the opening 21, contact with the shutter 22 and swing the same downwardly upon its pivot against the action of the spring 24:, until the dog 37 Will strike against the vertical arm 34 of the spring-pressed angle-lever and Will rock the latter upon its pivot, thus raising the horizontal arm 33, when the bolts 28 Will be at once pressed forward by reason of the'springs 31, and the noses for1r1ed upon the upper ends of the bolts will automatically engage in the notched loWer end of the keeper. The keeper will thus be held against removal from the lockboxnntil the bolts are released from engagement therewith and move backwards into their inoperative position by the key 20, the ward of Which is bifurcated, each member of the ward contacting with the adjacent bolt. The keeper may then be withdrawn through the opening 21 in the look-box, which opening Will then be closed automatically by the spring-pressed shutter. The arm 33' of the angle-lever will, at the same time, be moved into its normal position, under the action of the spring 35, and Will serve t0 retain the bolts in their retracted or inoperative position.

The front plate or cover 18 of the look-box is connected with the latter by a screw or other removable means, and its side edges are preferably notched for the reception cf lugs formed upon the sides of the look-box. 7 Owing to the pivotal connection between the keeper and the keeper-plate, the fornuer may swing upon its pivot into a horizontal position, in which case the keeper Will obviously not pass through the opening in the look-box when the 'lid is closed upon the chest, or, in other words, there Will be no locking engagement between the keeper and the bolts disposed Within the look-box unless the keeper is in its operative position. The invention Will be readily understood fromthe foregoing, and further description thereof is therefore deemed unnecessary, it being understood, however, that modifications and changes may obviosly be made Witbin the scope of the appended claims.

1 What is claimed, iS'' A 1. The combination, with a keeper and a keeper-plate, of a look-box provided with an opening in its upper face throngh which said keeper is adapted to project; a springprssed bolt pivoted within said look-box; a Spring-pressed lever adapted to engage said bolt to hold the same in inoperative position; a s ringpressed shutter pivoted within said I loc (-bOX and adapted to normally close said opening; and means carried by said shutter and adapted to engage with and operate said lever when said keeper passes throngh said opening to release the lever from engagement With said bolt and permit the latter to automatically engage said keeper.

2. The combination, with a keeper anda keeper-plate, of a look-box provided with an opening in its upper face through which said keeper is adapted to project; a springpressed bolt pivoted Within said look-box; a spring-pressed angle-lever having one arm adapted to engage said bolt to hold the same in inoperative position; a spring-pressed shutter pivoted within said lock-box and adapted to normally close said opening; and means carried by said shutter and adapted to engage the 0 posite arm of said anglelever when said reeper passes through said opening, to rock sald anglelever upon its pivot and release its firstmentioned arm from engagement with said bolt, to permit the latter to automatically engage said keeper.

3. The combination, with a keeper and a keeper plate, of a lockbox provided with an opening in its upper face through which said keeper is adapted to project; a spring pressed bolt pivoted within said look-box; a spring-pressed angle-lever having one arm adapted to engage said bolt, to hold the same in inoperative position, a spring-pressed shutter pivoted within said look-box and adapted to normally close said opening and a dog pivoted to said shutter and adapted to engage the opposite arm of said angle-lever, when said keeper passes throngh said opening, to rock said angle-lever upon its pivot gagement with said bolt t0 permit the latter to automatically engage said keeper.

4. The combination with a keeper and a keeper-plate, of a lock box having an opening in its upper face through Which said keeper is adapted to pass; a vertical parti+ tion disposed within said look-box intermediate its front and rear walls; a springpressed bolt movable upon each side of said partition, said bolts having a common pivot; a springpressed angle-lever having one arm adapted to engage said bolts to hold the same in inoperative position; a springpressed shntter pivoted within said look-box and adapted to normally close said opening; and means carried by said shutter and adaptand release its firstmentioned arm from ened to engage the opposite arm of said anglelever When said keeper passes through said opening, to rock sa1d angledever upon its pivot and release its first-mentioned arm from engagement With said bolts, to permit the latter to automaticafly engage said keeper.

5. The oombination With a keeper and a keeperplate, of a look-box having an open ing in its upper face through which said keeper is adapted to pass; a vertical partition disposed Within said look-box intermediate the front and rear walls thereof; a springpressed boit movable upon each side of said partition, said bolts having a common pivot; and a spring-pressed angle-lever having one arm adapted to engage said bolts 130 hold the same in inoperative position; a springpressed shutter pivoted within said look-box and adapted to normally close said opening; and a dog carried by said shutter and adapted to engage the opposite arm of said angle-lever when said keeper passes through said opening, to rock said angle--- lever upon its pivot and release its firstmentioned arm from engagement With said bolts, to permit the latter t0 automaticaliy engage sa1d keeper.

In testimony whereof, I affix my signature, in presence of two witnesses.

THOMAS M. LANSDEN. Witnesses J. L. MOGUIRE, S. M. MCREYNOLDS. 

